20:00 mutate()case_when()across()tidyselect (if there is time)mutateThe mutate() function takes in the following arguments: the first argument is the dataframe of interest, and the second argument is a new or existing data variable that is defined in terms of other data variables.
I think of them like formulas in Excel. . . .
Try calcluating a new variable in penguins called body_mass_kg by dividing body_mass_g by 1000.
Confirm your conversion was correct by comparing body_mass_g and body_mass_kg.